Electric embossing-plate heater



S. M. WEATHERLY AND H. J. STACH.

ELECTRIC EMBOSSING PLATE HEATER.

APPL|CAU0N FILED Aule. ls, |919.

1,375,544. Patented Apr. 19, 1921.

2 SHEETS-SHEET I- Mozo. Sidney MM/eafkerly @gi 5H HowardJ Stack.

5l l L omw- S. M. WEATHERLY AND H. J. STACH. ELECTRIC EMBOSSTNG PLATE HEATER.

1,375,544.. PatentedApr. 19,1921.

' l 2 SHEETS-SHEET 2.

APPLTCATION HLED AUG. 16|' 1918.

Sdneg M Waherly u oward J Stack.

Y UNITED STATES Parser easier..

SIDNEY M. WEATHERLY AND HOWARD J. STACK, OF HARTFORD, CONNECTICUT; SAID STACH ASSIGNOR OF HIS RIGHT TO NATIONAL MACHINE COMPANY, OF I-IART- FORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

ELECTRIC EMBOSSNG-PLATE HEATER. l

Specication of Letters Patent. y Patented API. 19, 1921.

Application led August 16, 1918. Serial No, 250,175.

T 0 'all whom t may concern.'

Be it known that we, SIDNEY M. VEATH- ERLY, a citizen of the United States, residing at Hartford, Hartford county, and State of Connecticut, and HOWARD J. STAGH, a citizen of the United States, residing at Hartford, Hartford county, and State of Connecticut, have invented and discovered certain new and useful Improvements in Electric Embossing-Plate Heaters, of which the following is a specification. Our said invention consists in certain 1mprovements in the construction and arrangement of parts of embossing machines, relating particularly to means for heating the embossing plates -or dies by electrical power and means for holding and adjusting the surface plate on the heater base, whereby the surface plate is quickly and accurately secured in position or removed from the heater base for the attachment or adjustment of embossing dies without interference with the electrical connections by which the heater base is connected with the ppwer. These and other advantages provided by our said invention will be further hereinwhich are made a part hereof, and on which similar reference characters indicate similar parts,

Figure 1 1s a face view of one of our em-' bossing plates comprising a heating base, a surface plate and dies mounted on the surface plate, allconstructed and arrangedrin accordance with our said invention.

Fig. 2, a cross section on the dotted line 2-2 n Fig. 1.

Fig. 3, a rear elevation. n

Fig. 4, a perspective view of the surface plate with embossing plates or dies mounted thereon. i

Figs. 5 and 6, detailed ,views illustrating the positioning and holding lug more clearly.

In said drawings, thefportions marked A. represent the heater base, B thesurface `plate proper and C a switch box in which the electrical connections are made to the heater base.

vThe heater base A'is preferably a casting formed with channels in its back in which are mounted. a series of heating elements 10 to 25, connected in groups so that the surface plate may be heated in sections when desired. ln the arrangement shown in Fig. 3 we have provided for the possible heating of the surface plate in four different sections as follows. The incoming line wire 3() leads to terminal 31 which is connected by branch wires 32 and 33 to posts 34 and 35 respectively. Said posts have switches 36 and 37 mounted thereon. Said switch 36 is adapted to connect with the terminal 38 and another terminal 39. Said branch 37 is adapted to connect with a terminal 40 and another terminal 41. Terminal 38 is connected with terminal 42. Terminal 39is connected with terminal 43.V Terminal 40 is connected with terminal 44 andv terminalV minal 43 to heating element 21. A'wire 48 runs from terminal 44 to heating element '14 and a wire 49 runs from terminal 45 to heating element 10.v The return line wire 50 is connected with a post 51 and by branch wires to terminals 52 and 53 respectively which in turn are connected by wires 54 and 55 to heating elements 18 and 17 respectively. I f

It will thus be seen that with the switch 36 in the position shown in Fig. 3, the electric current passes through wire 46 to elel `ment 25 and by means of the connections 56, "57, 58, 59, 60, 61 and 62, to the heating element 18 and .then out through wire 45 to the outgoing or return line wire 50, thus heating said heating elements 18,119, 20, 21,

22, 23, 24, and 25, one complete half ofthe surface plate B lon which is mounted an embossing'die 100. v

When it is desired to'heat the entire surfaceplate, switch 37 is turned to contact with terminal 41 which'. establishes a circuit through the heatingelements 10 to 17 inclusive through the wire 49 and'connections 63, 64, 65, 66, 67, 68, 69, and 55, in the same manner as described for the other side of the plate. J J

When desired to heat a smaller section, switch 36 may be turned to contact .with terminal 42 and only that section represented by heating elements 18, 19, 20 and 21 will receive the current and be heated. In

a like manner by turning switch 87 to contact With terminal l0 the section represented by heating elements 14e, 15, 167 and 17 Will receive the current and be heated.

By this arrangement it Will be noted that the heater base may be divided up into various sections and only that portion heated that is required to impart heat to the embossing dies carried onl the surface plate, thus saving` materially in the power required, and the consequent expense of operation.

The surface plate B is mounted on the heater base A by means of angular sha-pe(l notches kin its lower edge, tivo of said notches being shown one near each side of the plate. These notches rest upon curved faces 71 of lugs 72 formed With screw shanlrs 73, mounted in the heater base i as shown in Fig. 1. lugs operate to position the surface plate and a flange outside of face 71 on the lugs 72, also serves to hold the surface plate snugly to the heater base A. The upper edge of the holding plate is fastened by tivo clamping latches 74, mounted to turn on pivots 75 and tightly clamp the upper edge of the surface plate B to the heater base Said surface plate B is formed With numerous screw-threaded perforations arranged in squares over its entire surface, as indicated most clearly in Figs. 1 andf. Bunter posts 76 are mounted in said'perforations and adjusting' screws 77 with squared portions for turning with a Wrench are adapted to be inserted through screwthreaded perforations in said bunter posts and bear' against the edges of the embossing dies and'lOl.

It Will be understood, of course that the embossing dies 100 and 101 are shown merely for the purposes of illustration and that by means of the bunter posts, Which may be placed in Whatever position desired on the surface plate, embossing plates Vor dies of any size and any number, Within the limits of the capacity of the surface plate,

maybe employed as required by the Work bel done. v I

Handles 7 8 and 79 are provided on the corners of the surface plate by which it may be lifted from or put into position and handles 8() and 81 `are formed on each upper corner of the heater base A. by which it may be adjusted or handled.

It Will be understood'that the invention 'is adapted for use' with platen printing presses yor for specially constructed embossing presses. The type of heater illustrated is such as is designed for an embossing press. The type for use on print-ingv presses differing only .in shape and position of elec trical terminal, is not shown. `The difference in construction, however, is merely such as to enable the heater base to be used with Said notches and Y material to the invention and in no Wise modifies the same.

lil/*hilo We have illustrated in Fig. 3 an arrangement of electrical circuits and controlling devices it `will be understood that this illustration is merely for the purpose of showing the adaptability of the device in operative form and that any type of electrical connections, switches, etc., may be used Without departing from our invention. Also that other arrangements of circuits may be devised by any electrical engineer so that the surface may be heater as a whole, or any part or section thereof, as found most advantageous.

These and various other modifications in the construction and arrangement of the parts Will readily suggest themselves to those skilled in the art and We do not therefore desire to be understood as limiting the scope of our invention except as may be required bythe claims.

It will be noted that in the use of this heater With printing presses no chase is required, the heat-er base beingfinished like a chase so as to set intoV a press as ordinarily built, and locking up is therefore not required. It will also be noted that it is possible to heat the entire surface or a surface equal te the full dimensions of the inside measurements of the regular press chase. Also that it is not necessary to brealr the electrical connection when the dies are to be changed or lifted out lfor adjustment, as the surface plate is easily removed at any time by merely turning` the clamps 711- by means f a Wrench and lifting the surface plate B off the studs 72 when the embossing` dies can be adjusted exactly as may be desired and the surface plate replaced upon the heater base in exactly the same position as before the angular notches 7() insuring that it Will be correctly positioned in the press, a very important element in this class of Work. A .uniform degree of heat may thus be maintained, an important pointV in this art.

Havingthus fully described our said invention what We claim as nev.1 and desire to secure by Letters Patent, is: f

1. An embossing plate heater comprising a base, means for heating; said base, supporting and positioning` lugs on saidv base, a surface plate formed4 with angular notches in its edge'to engage said positioning and supporting` lugs, clamps for securing its upper edge to said heater base, and means for supporting and adjusting embossing dies on the surface plate, substantially as set forth.

2, An embossing plate heater comprising a base, means for heating the base, a surface Y plate detachably clamped to said heater base and provided with numerous perforations arranged in squares, bunter posts adgustably mounted in said perforations, embossing dies mounted between said bunter posts and adjusting screws adapted to move in the bunter posts with their axes perpendicular to the aXes of the perforations and engage the edges of the embossing dies for holding the dies in position, substantially as set forth. a

8. An embossing plate heater comprising a base, means for heating said base, a surface plate, pivoted clamps for removably securing the surface plate to the base, and handles on the surface plate to permit its removal from the base, substantially as described.

4. An embossing plate heater comprising a base, means for heating said base, a surface plate provided with notches on its lower edge, lugs on the base for eo-actng with the said notches on the surface plate to support and position the surface plate upon the base, clamps pivotally mounted on the base for removably securing the surface plate thereon, and handles on the surface plate to per mit its removal from the base when said clamps are swung on their pivots out of engagement with the surface plate.

In witness whereof, we have hereunto set our hands and seals at Hartford, Connecticut, this 5th day of August, A. D., nineteen hundred and eighteen.

SIDNEY M. WEATHERLY. HOWARD J. STACH.

[L s] [L s] Witnesses:

WM. F. Loomis,

ELLEN Gr. KANE. 

